Trimmer



A. G. HAGSTROM.

TRIMMER.

' APPLICATlON FILED AUG.23, 1919. y 1,389,302. Patented Aug. 30, 1921.

r 3 SHEETS-SHEET l.

A. G. HAGSTROM.

TRIMMER.

APPLICAUQN FILED AuG.23. |919.

Patented Aug. 30, 1921.

3 SHEETS-SHEET 2.

In ver? D/ A. G. HAGSTROM.

TRIMMER.

APPLICAUON FILED AUG.23,1919.

1,389,302, Pafenamg. 30,1921.

3 SHEETS-SHEET 3.

ALBERT G. HAGs'rRoM, or EAST HARTFORD, CONNECTICUT, ASSIGNOR TO THE FULLER BRUSH COMPANY, 0F `IIAJZTFORB, CONNECTICUT, A CORPORATION OF CONNECTICUT.

To all w/Lom t may concern Be it known that I, ALBERT G. I-IAGsTRoM,

a citizen of the United States, residing in East Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Trimmer, of whichthe following is a specification.

y invention relates to the class of machines employed fortrimming the ends ofy fibers or other threads or bristles comprising mops, brushes, &c., and an object of my invention, among others, is to provide a trimmer by the use of which brushes and mops and similar articles may be rapidly and efficiently trimmed.` i y One form of trimmerembodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings, in which- Figure 1 is a machine embodylng my invention, with parts broken away to show construction.

Fig. 2 is an end view of the same.

` Fig. 3 is an end view looking in the opposite direction from the point of view of Fig. 2. Y

Fig. 4 is a detail view, scale enlarged, illustrating the mounting of thetable.

Fig. 5 is a detail view, scale enlarged, illustrating'the cam for operating the belt shifter. n

Fig. 6 is a detail view, scale enlarged, in section through the finger supporting bar operating mechanism on plane denoted by dotted line 6 6 of Fig. 1. y

Fig. 7 isa detail view, scale enlarged, illustrating the chuck operating mechanism.

Fig. 8 is a view in section on plane denoted by dotted line 8-8 of Fig.l 6. n

Fig. 9 is a. detail view illustrating `the operation of the fingers in separating the threads.

In the accompanying meral 5 indicates the base of my improved trimming'machine on or adjacent to which a rotating cutter 6 of any desired construction is mounted and driven as by means of a belt passing arounda pulley 7 secured to the shaft of the cutter.

A carrier 8 is mounted on the base, as on rollers 9, this carrier supporting a live spindle 10 and a dead or tail spindle 11. The live spindle has a fast pulley 12 secured thereto and a loose pulley 13 mounted there- Specification of Letters Patent.

plan view of a portion of a' drawings the nu- TRIMMER.

Patented Aug. 30, 1921.

Application filed .August 23, 1919. Serial No. 319,304.

on and driven by a belt 14 that is shifted by a shifter 15 pivotally mounted on a shifter support 16 projecting from the base. A shifter cam 17 is mountedin the path of the lower end of the shifter lever vin its movement caused by the operation of the carrier. lVhen the carrier is moved in one direction the shifter engagesthe cam and shifts the belt to the fast pulley, andwhen the carrier is moved in the opposite direction the cam releases the shifter and a shifter spring 18 operates the shifter to shift the belt to the loose pulley to stop the operation. of the live spindle. Both the live and dead spindles have chucks of any suitable construction operated as by means of a handle on a chuck operating sleeve 19. Any suitable construction of chuck may be employed on each of the spindles, those herein shown comprising self-closing chucks that are opened as by means of said handles, that on the dead spindle especially being thus operated by force tending to move the dead spindle in a direction away from the live spindle.

This dead spindle is shiftable longitudinally in its bearings but is non-rotatable therein, and it supports a chuck comprising a head which is rotatably mounted on the spindle in a manner that will be readily understood. This spindlehas a tension device comprising a movable tension cam 20 rotatably mounted on the spindle and a stationary cooperating tension cam 21 fixed on the spindle, the movable cam having a handle 22 by means of which it may be manually rotated to move the dead spindle in a direction away from the live spindle, and thus tension the wire with threads of fiber or other material be held by the chucks,'the pitch ofthe caml beingsuiiicient to retainthe parts in anyV position in which they may have been placed. A pinion 23 on the live spindle meshes with an intermediate pinion, that in turn meshes with a gear 241 on a cani sleeve 25 rotatably kmounted in a bearing on the carrier and hav-v secured thereto that may i within which it is splined. A spring 31 moves the bar in one direction and the cam moves it in the opposite direction. rl`fhis bar has fingers 32 spaced at suitable distances apart to effectively engage the threads secured to a wire held in the chucks to separate and straighten said threads and keep them in this condition and thus avoid any tangle in the threads while being cut, said threads and wire comprising` a brush, mop or similar device which, when rapidly rotated to cause the threads or bristles tobe thrown outward by centrifugal action, is moved by the carrier into position for the ends of the threads to be trimmed by the knives of the cutter.

As a means for moving the carrier I employ a rock shaft having arms 34- connected by links S5 with the carrier, a handle 3G secured to the vshaft serving as a means for manual operation of the carrier.

In the operation ofthe device the operating handles for the chucks are moved to open the jaws, the ends of` the wire are placed within the jaws and the handles being released the jaws are automatically closed to secure 'thejwire The handle 2Q of the tensioning plate is then operated to impart the proper tension to the wire. Therock shaft 33 is then rotated as by means of its handle 3G and the carrier is moved toward the trimming knives, the extreme ends of the threads or bristles of the rotating brush, inop or other deviceycoming in contact with the ro-V tating knives by which they are trimmed. In this movementv of the carrier the belt shifter' 1G is moved into engagement with its cam 17 and shifts the belt onto the fast pulley' to start rotation-of the chucks and.

the brush, mop or likedevice held thereby, this before the trimming position of the carrier is reached. When the carrier is moved away from the trimming knives by the operation of the rock shaftfthe` belt. shifter is automatically moved by its spring to shift the belt to its loose'pulley, the shifter cam being positioned to permitthis operation, and the rotation of the chucks and the brush,

iop or like device carried thereby;

In accordance with the provisions of the patent statutes, I have described the principles of operation of my invention, together withv the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is onlyillustrative, and that the invention may be carried out by other means.

I claiml. A trimmer including trimming knives, a carrier mo v able toward and from the trimming knives, chucks oppositely mounted on the carrier, chuck rotating means, and means operable by the movement of the carrier to control the rotating lmovement of the chucks.

2Q A trimmer including trimming knives, a carrier movable toward andpfromthe trimfor rotation of, said article while being trimmed, means for rotating said receiving and holding means, and a barI supported by the carrier and haying fingers projecting therefrom in positionto engage the threads of the article being trimmed to preserve an untangledl condition of the threads as said article is rotated.

4. A trimmer including trimming knives, a carrier movable toward and fromthe trimming knives, means on the carrier to receive and hold an article comprising threads, and for rotation of said article while being trimmed, means for rotating said receiving and holding means, a bar longitudinally movable on the carrier, means forimparting longitudinal movement to said bar, and fingers projecting from saidbar to engage the threads of the rotating article and preserve them in` an untangled condition while being trimmed.

5. A trimmerl including trimming knives, acarrier movable toward andfrom the vtrimming knives, means mounted on the carrier` to receive and hold an article comprising threads, and for rotation of said article while being trimmed, means for rotating said receivj ing` andholding means, a bar longitudinally movable on the carrier, means controlled by the movement of the carrier to impart longitudinal movement to` said bar, and fingers projecting, fromV said bai1 to engage the threads of, the article and preserve them in an untangled condition while being trimmed. -6. A trimmer including trimming knives, a carrier movable towardand from the trimming knives, means mounted on the carrier to rreceive and hold an article comprising threads, and for rotation of said article while being trimmed, means for rotating the receiving and holding means, a cam sleeve rotatably mounted on the carrier, a bar mounted on f the carrier and extending through said cam sleeve to receive longitudinalmovement therefrom by an operative connection therewith, means for operating the sleeve, and fingers projectingfrom the bar to engage threads, of the article and preserve them in an untangled condition while being trimmed. y f

7. A trimmer includingtrimming knives, a carrier. movable toward and from` the trimming knives, meansmounted on the carrier to receive and hold an article comprising threads, and for rotation of said article While 4being trimmed, a cam sleeve rotatably mounted on the carrier, means controlled by the movement of the carrier to operate said cam sleeve, a bar extending through said sleeve and receiving longitudinal movement therefrom `by an operative connection there- With, and fingers extending from said bar to engage threads of an article and preserve them in an untangled condition While being trimmed.

8. A trimmer including trimming knives, a carrier movable toward and from the trimming knives, a live spindle, means on the live spindle to receive and hold an article being trimmed, a fast and a loose pulley secured to the spindle, a belt shifter mounted on the carrier, a cam mounted in the path of movement of said shifter, a cam operatively connected With said live spindle, a longitudinally movable bar operatively connected with said cam, and fingers projecting from said bar in position to engage threads of an article being trimmed.

9. A trimmer including trimming knives, a carrier supported upon rollers and movable toward and from the trimming knives, means upon the carrier to receive and hold an article comprising threads, and for rotation ofA said article While being trimmed, means for rotating said receiving and holding means, a rock shaft, means for operating the rock shaft, and a link connection between said rock shaft and carrier for operation of the latter.

10. A trimmer' including trimming knives, means to receive and hold an article comprising threads, and for rotation of said article While being trimmed, a bar longitudinally movable to engage the threads of an article to maintain them in an untangled condition While being trimmed, means for imparting longitudinal movement to said bar, a roller bearing frame surrounding said bar, and rollers mounted in said frame and supporting said bar in its longitudinal movement.

ll. A trimmer including trimming knives, means to receive and hold an article comprising threads, and for rotation of said article While being trimmed, a cam sleeve rotatably mounted, means for rotating said sleeve, a bar projecting through said cam sleeve in cooperative relation to the article being trimmed, means operatively connecting said bar and said cam sleeve for longitudinal reciprocation of the former, a roller bearing frame supported adjacent to said cam sleeve, rollers mounted in said frame on opposite sides of said bar to support it, and lingers projecting from said bar to engage the threads of the article to preserve them in an untangled condition While beineP trimmed.

ALBERT G. HAsTRoM. 

